Ultrasound evaluation of abnormal umbilical cord coiling in second trimester of gestation in association with adverse pregnancy outcome

Predanić, Mladen; Perni, Sriram C.; Chasen, Stephen T.; Baergen, Rebecca N.; Chervenak, Frank A.

doi:10.1016/j.ajog.2004.12.092

Cited by 61 publications

(69 citation statements)

References 16 publications

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“…The mean aUCI in the present study was comparable to those of the several similar studies in the past: Otsubo et al [2], 0.39 ± 0.03 coils/cm; Degani et al [3], 0.42 ± 0.12 coils/cm; Predanic and Perni [4], 0.403 ± 2SD coils/cm; Perni [5], 0.4 ± 0.1 coils/cm; and de Laat et al [6], 0.3 ± 0.09 coils/cm. Rana and Ebert [7] concluded that hypercoiling is associated with an increased incidence of premature delivery.…”

Section: Discussionsupporting

confidence: 80%

“…Predanic and Perni [4] showed that abnormal coiling was associated significantly with small for gestational age neonates at birth (p = 0.043). Degani et al [3] concluded that the best single predictor of a small for gestational age infant was the coiling index with sensitivity of 79 %, specificity of 86.5 %, positive predictive value of 72 % and a negative predictive value of 905.…”

Section: Discussionmentioning

confidence: 99%

“…Predanic and Perni [4] found that a non-reassuring foetal status in labour was observed in 25.7 % of foetuses with abnormal coiling compared to 11 % of foetuses with normal coiling (p = 0.007).…”

Section: Discussionmentioning

confidence: 99%

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Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Sharma

Bhardwaj

Gupta

et al. 2012

J Obstet Gynecol India

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Objective To study the association between antenatal umbilical coiling index (aUCI) and perinatal outcome. Methods 600 primigravidas with uncomplicated singleton pregnancies had an ultrasonography between 18 and 22 weeks of gestation for aUCI by colour Doppler. The aUCI was calculated as the reciprocal of the distance between a pair of coils. It was then correlated with the following pregnancy outcomes: birth weight, mode of delivery, meconium staining of liquor, Apgar scores and gestational age. The results were statistically analysed by v 2 -test. Results The mean aUCI was 0.41. Undercoiling was associated with spontaneous preterm delivery (47.87 %), low Apgar score (52.13 %), LBW (52.59 %), FGR (21.28 %) and NICU admission (76.34 %). Overcoiling was associated with preterm deliveries (65.38 %), increased caesarean sections (61.54 %), meconium staining of liquor (67.31 %), low Apgar score (63.46 %) and NICU admission (72.55 %). There was a positive strong correlation between aUCI and birth weight (r = ?0.426) Conclusions Abnormal coiling is strongly correlated with low birth weight.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

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Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Sharma

Bhardwaj

Gupta

et al. 2012

J Obstet Gynecol India

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“…In a previously published study, we also observed a higher prevalence of SGA infants with the abnormal aUCI, including umbilical hypocoiling and hypercoiling. 2 In addition to the association between the abnormal umbilical coiling and the higher prevalence of SGA neonates, lean or thinner umbilical cords were also found to be associated with an altered fetal growth pattern and higher SGA prevalence at birth. 3 These authors suggested that lean umbilical cords could serve as sonographic markers for a fetus at risk for being SGA.…”

Section: Discussionmentioning

confidence: 99%

“…2 In addition to abnormal coiling, depicted as a lean or thin umbilical cord, it was described as a simple sonographic marker for SGA neonates. 3 Although, the abnormal umbilical coiling and the thinning of the umbilical cord are the possible causes of the higher prevalence of SGA neonates, it is unclear whether these 2 morphometric parameters are dependant on each other or are independently related to intrauterine fetal growth.…”

mentioning

confidence: 99%

Absence of a Relationship Between Umbilical Cord Thickness and Coiling Patterns

Predanić

Perni

2005

Journal of Ultrasound in Medicine

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Objective. The purpose of this study was to evaluate a relationship between the umbilical cord thickness and cord coiling patterns during the fetal sonographic anatomic survey in the second trimester of pregnancy. Methods. This was a prospective study of 470 patients with singleton pregnancies who had a fetal anatomic survey with recorded umbilical coiling patterns between 18 and 23 weeks' gestation. The umbilical cord thickness was assessed as an umbilical diameter at the level of the fetal abdominal cord insertion and compared with the antenatal umbilical coiling index (aUCI), calculated as a reciprocal value of the distance between a pair of umbilical cord coils. Results. Three hundred twenty-one patients had adequate sonographic umbilical cord images and maternal demographic, antenatal, and labor data to meet inclusion criteria. The mean aUCI was 0.41 with 10th and 90th percentiles of 0.21 and 0.60, respectively. A total of 10.6% (34/321) and 9.3% (30/321) of patients were categorized as having hypocoiled and hypercoiled umbilical cords, respectively. The mean cord diameter ± SD was 9.48 ± 0.97 mm (range 7.0-12.5 mm). There was no statistically significant correlation between aUCI and umbilical cord thickness (P = .1164). Conclusions. An aUCI, or umbilical coiling pattern, does not correlate with umbilical cord thickness. It appears that a lesser amount of the umbilical supportive tissue, mainly Wharton jelly, is not related to an increased umbilical cord coiling pattern.

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Surgeon volumes in oesophagogastric and hepatopancreatobiliary resectional surgery (Br J Surg 2011; 98: 891–893)

Davies

2011

British Journal of Surgery

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Mopping up: Phase‐selective gelators were synthesized from sugar alcohols using biocatalysis. The gelators exhibited an unprecedented ability to phase‐selectively gel only organic liquids including crude‐oil fractions in the presence of water at room temperature. Oil can be recovered from the gelled phase by heating and distillation. Thus this class of materials may be useful in recovering oil from spills.

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Ultrasound evaluation of abnormal umbilical cord coiling in second trimester of gestation in association with adverse pregnancy outcome

Cited by 61 publications

References 16 publications

Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Absence of a Relationship Between Umbilical Cord Thickness and Coiling Patterns

Surgeon volumes in oesophagogastric and hepatopancreatobiliary resectional surgery (Br J Surg 2011; 98: 891–893)

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